Oprah explains her weight loss success

The 62-year-old TV star has revealed that her new-look figure is the result of her Weight Watchers diet, explaining that she has managed to shed her excess weight without feeling "deprived" of her favourite treats.

Oprah - whose weight struggle is well known - explains in a new ad: "Since I've started Weight Watchers, I've lost over 40 lbs. I can honestly tell you, I struggle no more."

Oprah also insisted that despite the success of her diet, she has never felt like she's had to deny herself any of her most-loved foods.